1 /******************************************************************************
3 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
19 ******************************************************************************/
20 #define _RTW_PWRCTRL_C_
22 #include <osdep_service.h>
23 #include <drv_types.h>
24 #include <osdep_intf.h>
25 #include <linux/usb.h>
27 void ips_enter(struct adapter *padapter)
29 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
30 struct xmit_priv *pxmit_priv = &padapter->xmitpriv;
32 if (padapter->registrypriv.mp_mode == 1)
35 if (pxmit_priv->free_xmitbuf_cnt != NR_XMITBUFF ||
36 pxmit_priv->free_xmit_extbuf_cnt != NR_XMIT_EXTBUFF) {
37 DBG_88E_LEVEL(_drv_info_, "There are some pkts to transmit\n");
38 DBG_88E_LEVEL(_drv_info_, "free_xmitbuf_cnt: %d, free_xmit_extbuf_cnt: %d\n",
39 pxmit_priv->free_xmitbuf_cnt, pxmit_priv->free_xmit_extbuf_cnt);
43 _enter_pwrlock(&pwrpriv->lock);
45 pwrpriv->bips_processing = true;
47 /* syn ips_mode with request */
48 pwrpriv->ips_mode = pwrpriv->ips_mode_req;
50 pwrpriv->ips_enter_cnts++;
51 DBG_88E("==>ips_enter cnts:%d\n", pwrpriv->ips_enter_cnts);
52 if (rf_off == pwrpriv->change_rfpwrstate) {
53 pwrpriv->bpower_saving = true;
54 DBG_88E_LEVEL(_drv_info_, "nolinked power save enter\n");
56 if (pwrpriv->ips_mode == IPS_LEVEL_2)
57 pwrpriv->bkeepfwalive = true;
59 rtw_ips_pwr_down(padapter);
60 pwrpriv->rf_pwrstate = rf_off;
62 pwrpriv->bips_processing = false;
64 _exit_pwrlock(&pwrpriv->lock);
67 int ips_leave(struct adapter *padapter)
69 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
70 struct security_priv *psecuritypriv = &(padapter->securitypriv);
71 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
72 int result = _SUCCESS;
76 _enter_pwrlock(&pwrpriv->lock);
78 if ((pwrpriv->rf_pwrstate == rf_off) && (!pwrpriv->bips_processing)) {
79 pwrpriv->bips_processing = true;
80 pwrpriv->change_rfpwrstate = rf_on;
81 pwrpriv->ips_leave_cnts++;
82 DBG_88E("==>ips_leave cnts:%d\n", pwrpriv->ips_leave_cnts);
84 result = rtw_ips_pwr_up(padapter);
85 if (result == _SUCCESS) {
86 pwrpriv->rf_pwrstate = rf_on;
88 DBG_88E_LEVEL(_drv_info_, "nolinked power save leave\n");
90 if ((_WEP40_ == psecuritypriv->dot11PrivacyAlgrthm) || (_WEP104_ == psecuritypriv->dot11PrivacyAlgrthm)) {
91 DBG_88E("==>%s, channel(%d), processing(%x)\n", __func__, padapter->mlmeextpriv.cur_channel, pwrpriv->bips_processing);
92 set_channel_bwmode(padapter, padapter->mlmeextpriv.cur_channel, HAL_PRIME_CHNL_OFFSET_DONT_CARE, HT_CHANNEL_WIDTH_20);
93 for (keyid = 0; keyid < 4; keyid++) {
94 if (pmlmepriv->key_mask & BIT(keyid)) {
95 if (keyid == psecuritypriv->dot11PrivacyKeyIndex)
96 result = rtw_set_key(padapter, psecuritypriv, keyid, 1);
98 result = rtw_set_key(padapter, psecuritypriv, keyid, 0);
103 DBG_88E("==> ips_leave.....LED(0x%08x)...\n", rtw_read32(padapter, 0x4c));
104 pwrpriv->bips_processing = false;
106 pwrpriv->bkeepfwalive = false;
107 pwrpriv->bpower_saving = false;
110 _exit_pwrlock(&pwrpriv->lock);
115 static bool rtw_pwr_unassociated_idle(struct adapter *adapter)
117 struct adapter *buddy = adapter->pbuddy_adapter;
118 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
119 #ifdef CONFIG_88EU_P2P
120 struct wifidirect_info *pwdinfo = &(adapter->wdinfo);
125 if (time_after_eq(adapter->pwrctrlpriv.ips_deny_time, jiffies))
128 if (check_fwstate(pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR) ||
129 check_fwstate(pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS) ||
130 check_fwstate(pmlmepriv, WIFI_AP_STATE) ||
131 check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE) ||
132 #if defined(CONFIG_88EU_P2P)
133 !rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
139 /* consider buddy, if exist */
141 struct mlme_priv *b_pmlmepriv = &(buddy->mlmepriv);
142 #ifdef CONFIG_88EU_P2P
143 struct wifidirect_info *b_pwdinfo = &(buddy->wdinfo);
146 if (check_fwstate(b_pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR) ||
147 check_fwstate(b_pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS) ||
148 check_fwstate(b_pmlmepriv, WIFI_AP_STATE) ||
149 check_fwstate(b_pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE) ||
150 #if defined(CONFIG_88EU_P2P)
151 !rtw_p2p_chk_state(b_pwdinfo, P2P_STATE_NONE))
163 void rtw_ps_processor(struct adapter *padapter)
165 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
166 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
167 enum rt_rf_power_state rfpwrstate;
169 pwrpriv->ps_processing = true;
171 if (pwrpriv->bips_processing)
174 if (padapter->pwrctrlpriv.bHWPwrPindetect) {
175 rfpwrstate = RfOnOffDetect(padapter);
176 DBG_88E("@@@@- #2 %s==> rfstate:%s\n", __func__, (rfpwrstate == rf_on) ? "rf_on" : "rf_off");
178 if (rfpwrstate != pwrpriv->rf_pwrstate) {
179 if (rfpwrstate == rf_off) {
180 pwrpriv->change_rfpwrstate = rf_off;
181 pwrpriv->brfoffbyhw = true;
182 padapter->bCardDisableWOHSM = true;
183 rtw_hw_suspend(padapter);
185 pwrpriv->change_rfpwrstate = rf_on;
186 rtw_hw_resume(padapter);
188 DBG_88E("current rf_pwrstate(%s)\n", (pwrpriv->rf_pwrstate == rf_off) ? "rf_off" : "rf_on");
190 pwrpriv->pwr_state_check_cnts++;
193 if (pwrpriv->ips_mode_req == IPS_NONE)
196 if (!rtw_pwr_unassociated_idle(padapter))
199 if ((pwrpriv->rf_pwrstate == rf_on) && ((pwrpriv->pwr_state_check_cnts%4) == 0)) {
200 DBG_88E("==>%s .fw_state(%x)\n", __func__, get_fwstate(pmlmepriv));
201 pwrpriv->change_rfpwrstate = rf_off;
206 rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv);
207 pwrpriv->ps_processing = false;
211 static void pwr_state_check_handler(void *FunctionContext)
213 struct adapter *padapter = (struct adapter *)FunctionContext;
214 rtw_ps_cmd(padapter);
221 * pslv power state level, only could be PS_STATE_S0 ~ PS_STATE_S4
224 void rtw_set_rpwm(struct adapter *padapter, u8 pslv)
227 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
229 pslv = PS_STATE(pslv);
231 if (pwrpriv->btcoex_rfon) {
232 if (pslv < PS_STATE_S4)
236 if ((pwrpriv->rpwm == pslv)) {
237 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
238 ("%s: Already set rpwm[0x%02X], new=0x%02X!\n", __func__, pwrpriv->rpwm, pslv));
242 if ((padapter->bSurpriseRemoved) ||
243 (!padapter->hw_init_completed)) {
244 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
245 ("%s: SurpriseRemoved(%d) hw_init_completed(%d)\n",
246 __func__, padapter->bSurpriseRemoved, padapter->hw_init_completed));
248 pwrpriv->cpwm = PS_STATE_S4;
253 if (padapter->bDriverStopped) {
254 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
255 ("%s: change power state(0x%02X) when DriverStopped\n", __func__, pslv));
257 if (pslv < PS_STATE_S2) {
258 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
259 ("%s: Reject to enter PS_STATE(0x%02X) lower than S2 when DriverStopped!!\n", __func__, pslv));
264 rpwm = pslv | pwrpriv->tog;
265 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
266 ("rtw_set_rpwm: rpwm=0x%02x cpwm=0x%02x\n", rpwm, pwrpriv->cpwm));
268 pwrpriv->rpwm = pslv;
270 rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&rpwm));
272 pwrpriv->tog += 0x80;
273 pwrpriv->cpwm = pslv;
276 static u8 PS_RDY_CHECK(struct adapter *padapter)
278 u32 curr_time, delta_time;
279 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
280 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
284 delta_time = curr_time - pwrpriv->DelayLPSLastTimeStamp;
286 if (delta_time < LPS_DELAY_TIME)
289 if ((check_fwstate(pmlmepriv, _FW_LINKED) == false) ||
290 (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) ||
291 (check_fwstate(pmlmepriv, WIFI_AP_STATE)) ||
292 (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
293 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)))
295 if (pwrpriv->bInSuspend)
297 if ((padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) && (padapter->securitypriv.binstallGrpkey == false)) {
298 DBG_88E("Group handshake still in progress !!!\n");
304 void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode)
306 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
307 #ifdef CONFIG_88EU_P2P
308 struct wifidirect_info *pwdinfo = &(padapter->wdinfo);
309 #endif /* CONFIG_88EU_P2P */
311 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
312 ("%s: PowerMode=%d Smart_PS=%d\n",
313 __func__, ps_mode, smart_ps));
315 if (ps_mode > PM_Card_Disable) {
316 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("ps_mode:%d error\n", ps_mode));
320 if (pwrpriv->pwr_mode == ps_mode) {
321 if (PS_MODE_ACTIVE == ps_mode)
324 if ((pwrpriv->smart_ps == smart_ps) &&
325 (pwrpriv->bcn_ant_mode == bcn_ant_mode))
329 /* if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) */
330 if (ps_mode == PS_MODE_ACTIVE) {
331 #ifdef CONFIG_88EU_P2P
332 if (pwdinfo->opp_ps == 0) {
333 DBG_88E("rtw_set_ps_mode: Leave 802.11 power save\n");
334 pwrpriv->pwr_mode = ps_mode;
335 rtw_set_rpwm(padapter, PS_STATE_S4);
336 rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode));
337 pwrpriv->bFwCurrentInPSMode = false;
340 #endif /* CONFIG_88EU_P2P */
341 if (PS_RDY_CHECK(padapter)) {
342 DBG_88E("%s: Enter 802.11 power save\n", __func__);
343 pwrpriv->bFwCurrentInPSMode = true;
344 pwrpriv->pwr_mode = ps_mode;
345 pwrpriv->smart_ps = smart_ps;
346 pwrpriv->bcn_ant_mode = bcn_ant_mode;
347 rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode));
349 #ifdef CONFIG_88EU_P2P
350 /* Set CTWindow after LPS */
351 if (pwdinfo->opp_ps == 1)
352 p2p_ps_wk_cmd(padapter, P2P_PS_ENABLE, 0);
353 #endif /* CONFIG_88EU_P2P */
355 rtw_set_rpwm(padapter, PS_STATE_S2);
366 s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms)
373 start_time = jiffies;
375 rtw_hal_get_hwreg(padapter, HW_VAR_FWLPS_RF_ON, &bAwake);
379 if (padapter->bSurpriseRemoved) {
381 DBG_88E("%s: device surprise removed!!\n", __func__);
385 if (rtw_get_passing_time_ms(start_time) > delay_ms) {
387 DBG_88E("%s: Wait for FW LPS leave more than %u ms!!!\n", __func__, delay_ms);
398 /* Enter the leisure power save mode. */
400 void LPS_Enter(struct adapter *padapter)
402 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
404 if (PS_RDY_CHECK(padapter) == false)
407 if (pwrpriv->bLeisurePs) {
408 /* Idle for a while if we connect to AP a while ago. */
409 if (pwrpriv->LpsIdleCount >= 2) { /* 4 Sec */
410 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) {
411 pwrpriv->bpower_saving = true;
412 DBG_88E("%s smart_ps:%d\n", __func__, pwrpriv->smart_ps);
413 /* For Tenda W311R IOT issue */
414 rtw_set_ps_mode(padapter, pwrpriv->power_mgnt, pwrpriv->smart_ps, 0);
417 pwrpriv->LpsIdleCount++;
422 #define LPS_LEAVE_TIMEOUT_MS 100
425 /* Leave the leisure power save mode. */
426 void LPS_Leave(struct adapter *padapter)
428 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
430 if (pwrpriv->bLeisurePs) {
431 if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) {
432 rtw_set_ps_mode(padapter, PS_MODE_ACTIVE, 0, 0);
434 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE)
435 LPS_RF_ON_check(padapter, LPS_LEAVE_TIMEOUT_MS);
439 pwrpriv->bpower_saving = false;
443 /* Description: Leave all power save mode: LPS, FwLPS, IPS if needed. */
444 /* Move code to function by tynli. 2010.03.26. */
446 void LeaveAllPowerSaveMode(struct adapter *Adapter)
448 struct mlme_priv *pmlmepriv = &(Adapter->mlmepriv);
451 if (check_fwstate(pmlmepriv, _FW_LINKED)) { /* connect */
452 p2p_ps_wk_cmd(Adapter, P2P_PS_DISABLE, enqueue);
454 rtw_lps_ctrl_wk_cmd(Adapter, LPS_CTRL_LEAVE, enqueue);
458 void rtw_init_pwrctrl_priv(struct adapter *padapter)
460 struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
462 _init_pwrlock(&pwrctrlpriv->lock);
463 pwrctrlpriv->rf_pwrstate = rf_on;
464 pwrctrlpriv->ips_enter_cnts = 0;
465 pwrctrlpriv->ips_leave_cnts = 0;
466 pwrctrlpriv->bips_processing = false;
468 pwrctrlpriv->ips_mode = padapter->registrypriv.ips_mode;
469 pwrctrlpriv->ips_mode_req = padapter->registrypriv.ips_mode;
471 pwrctrlpriv->pwr_state_check_interval = RTW_PWR_STATE_CHK_INTERVAL;
472 pwrctrlpriv->pwr_state_check_cnts = 0;
473 pwrctrlpriv->bInternalAutoSuspend = false;
474 pwrctrlpriv->bInSuspend = false;
475 pwrctrlpriv->bkeepfwalive = false;
477 pwrctrlpriv->LpsIdleCount = 0;
478 if (padapter->registrypriv.mp_mode == 1)
479 pwrctrlpriv->power_mgnt = PS_MODE_ACTIVE ;
481 pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/* PS_MODE_MIN; */
482 pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ? true : false;
484 pwrctrlpriv->bFwCurrentInPSMode = false;
486 pwrctrlpriv->rpwm = 0;
487 pwrctrlpriv->cpwm = PS_STATE_S4;
489 pwrctrlpriv->pwr_mode = PS_MODE_ACTIVE;
490 pwrctrlpriv->smart_ps = padapter->registrypriv.smart_ps;
491 pwrctrlpriv->bcn_ant_mode = 0;
493 pwrctrlpriv->tog = 0x80;
495 pwrctrlpriv->btcoex_rfon = false;
497 _init_timer(&(pwrctrlpriv->pwr_state_check_timer), padapter->pnetdev, pwr_state_check_handler, (u8 *)padapter);
500 inline void rtw_set_ips_deny(struct adapter *padapter, u32 ms)
502 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
503 pwrpriv->ips_deny_time = jiffies + rtw_ms_to_systime(ms);
507 * rtw_pwr_wakeup - Wake the NIC up from: 1)IPS. 2)USB autosuspend
508 * @adapter: pointer to struct adapter structure
509 * @ips_deffer_ms: the ms will prevent from falling into IPS after wakeup
510 * Return _SUCCESS or _FAIL
513 int _rtw_pwr_wakeup(struct adapter *padapter, u32 ips_deffer_ms, const char *caller)
515 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
516 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
517 unsigned long expires;
520 expires = jiffies + rtw_ms_to_systime(ips_deffer_ms);
521 if (time_before(pwrpriv->ips_deny_time, expires))
522 pwrpriv->ips_deny_time = jiffies + rtw_ms_to_systime(ips_deffer_ms);
526 if (pwrpriv->ps_processing) {
527 DBG_88E("%s wait ps_processing...\n", __func__);
528 while (pwrpriv->ps_processing && rtw_get_passing_time_ms(start) <= 3000)
530 if (pwrpriv->ps_processing)
531 DBG_88E("%s wait ps_processing timeout\n", __func__);
533 DBG_88E("%s wait ps_processing done\n", __func__);
537 /* System suspend is not allowed to wakeup */
538 if ((!pwrpriv->bInternalAutoSuspend) && (pwrpriv->bInSuspend)) {
544 if ((pwrpriv->bInternalAutoSuspend) && (padapter->net_closed)) {
549 /* I think this should be check in IPS, LPS, autosuspend functions... */
550 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
554 if (rf_off == pwrpriv->rf_pwrstate) {
555 DBG_88E("%s call ips_leave....\n", __func__);
556 if (_FAIL == ips_leave(padapter)) {
557 DBG_88E("======> ips_leave fail.............\n");
563 /* TODO: the following checking need to be merged... */
564 if (padapter->bDriverStopped || !padapter->bup ||
565 !padapter->hw_init_completed) {
566 DBG_88E("%s: bDriverStopped=%d, bup=%d, hw_init_completed =%u\n"
568 , padapter->bDriverStopped
570 , padapter->hw_init_completed);
576 expires = jiffies + rtw_ms_to_systime(ips_deffer_ms);
577 if (time_before(pwrpriv->ips_deny_time, expires))
578 pwrpriv->ips_deny_time = jiffies + rtw_ms_to_systime(ips_deffer_ms);
582 int rtw_pm_set_lps(struct adapter *padapter, u8 mode)
585 struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
587 if (mode < PS_MODE_NUM) {
588 if (pwrctrlpriv->power_mgnt != mode) {
589 if (PS_MODE_ACTIVE == mode)
590 LeaveAllPowerSaveMode(padapter);
592 pwrctrlpriv->LpsIdleCount = 2;
593 pwrctrlpriv->power_mgnt = mode;
594 pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ? true : false;
603 int rtw_pm_set_ips(struct adapter *padapter, u8 mode)
605 struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
607 if (mode == IPS_NORMAL || mode == IPS_LEVEL_2) {
608 rtw_ips_mode_req(pwrctrlpriv, mode);
609 DBG_88E("%s %s\n", __func__, mode == IPS_NORMAL ? "IPS_NORMAL" : "IPS_LEVEL_2");
611 } else if (mode == IPS_NONE) {
612 rtw_ips_mode_req(pwrctrlpriv, mode);
613 DBG_88E("%s %s\n", __func__, "IPS_NONE");
614 if ((padapter->bSurpriseRemoved == 0) && (_FAIL == rtw_pwr_wakeup(padapter)))